Valve



(No Model.)

P. WHITE'. Valve. No. 241,174. Pt'enfed May 10,1881.

Figi. F1 g. 47

Azges;

m @Ma N. PETERS, Photo-Lithograph, Washlngtun, D. C.

UNITED STATES PATENT OFFICE.

PETER WHITE, OF ST. LOUIS, MISSOURI.

VALVE.

SPECIFICATION forming part of Letters Patent No. 241,174, dated May 10,1881.

Application filed September 14, 1880. (No model.)

To all whom @t may concern:

Be it known that l, PETER WHITE, of St. Louis, Missouri, have lnade anew and useful Improvement in Valves, of which the followingis a full,clear, and exact description, reference being had to the annexeddrawings, making part of this specification, in which- Figure l is avertical section taken through the valve, the valve being closed; Fig.2, a vertical section taken through the valve, the section being takenat right angles to that of Fig. l; Fig. 3, a section of the valve,showing the valve open Fig. 4, a detail, being a seetional view of thelower end of the stem ofthe valve Fig. 5, a view of theseat that thevalvestem bears upon when the valve is closed Fig. 6, a section taken onthe line ot' Fig. 2 and Fig. 7, a sectional view, showing an applicationof a portion of the improvement to a bib-cock. l

' The same letters denote the same parts.

A prominent feature of the present invention is a valve-stem having twocup-leathers, opening from each other and working in a cylindricalchamber, that part of the valve-stem which is between the leathersbeing, when the valveis closed, opposite theinlet into the valvechamber,and the discharge from said chainber being at a different level from theinlet.

Theimprovement also relates to the construction of the lower end of thevalve-stem, or the means for assisting the upward movement of the valve,and to the means for regulating the iiow of water to the valve. 4

Referring to the drawings, F represents the improved valve. The inlet tothe valve is at G. The chamber f, in which the valve F works, iscylindrical. The valve is constructed as follows The stem j" isfurnished with two eupleathers, I-I and H'. When thevalve is closed, asin Figs. 1, 2, the lower end of the stem rests upon a seat, I, and theleathers H H' are respectively above and beneath the inlet G. Thedischarge from the valve-chamber is at J, below or beyond the terminusof the movement of the leather H'. The water may liow to the inlet Gthrough the tube G', passing thence into a side pipe or channel, g, andthence through the inlet G. The tube G' and pipe g may, however, takethe form shown at G2, Fig. 7, as it is immaterial, so far as the workingof the valve F is concerned, from what source the water is supplied tothe inlet G. To regulate the flow through the tube G/r'athimble, K, is

used. By screwing it into the tube G' the openinginto the pipe g isdiminished, This is desirable when there is a heavy pressure in themain. Tthe seat I is of suitable material, and is mounted on a plug, l',that can be screwed in and out in the bearing i, and thus adjusted asdesired. Arranged as shown in Figs. l, 2, no water can pass the valve,the pressure operating to expand theleathers H H' both above and belowthe inlet G. As soon, however, as the valve begins to lift and leave theseat I water in small quantity flows through a perforation (shown atf,Figs. 3, 4) into the space J' and discharge J By reason of thecupleathers H H', arran ged and operatin g as described, the operationof the valve F is rendered easy, but allowing the water to at once tlowthrough the perforation f2, as described, the ascent of the valveimmediately at the initiation of the movement is facilitated.

The stem of the valve F may be provided with a weight, IV, to render'the valve more `sensitive in its action when it is connected with othermechanism, as that of a water-closet.

The leathers H H' operate to pack the valve F perfectly, obviating theneed of anyl other packing at the top of the valve-chamber. They alsoserve to balance tbe valve and render it easy in its action.

I claiml. The valve F, working in a cylindrical chamber, j', andprovided with the cup-leath ers H H', and having the inlet Gand outletJ, the inner sides of said leathers being toward each other, and thatpart of the valve-stem which is between the leathers being, when thevalve is closed, opposite said inlet, and when the valve is opened abovesaidinlet, enabling the outlet, substantially as described.

2. The valve F, having the stem perforated at f2, seat I, inlet G, andoutlet J', combined substantially as described.

3. In combination with the adjustable seat I, the perforated stem j",substantially as described.

4. The combination of the tube G', pipe g, and adjustable thimble K,substantially as described.

Witness my hand.

. PETER WHITE. Witnesses:

C. D. MOODY,

W. J. KEsL.

the water to pass below the lower leather to loo l

